Repacking The Fluid Section - Titan Tool MultiFinish 440 Notice D'utilisation

Servicing the valves
The design of the fluid section allows
access to the foot valve and seat
as well as the outlet valve and seat
without completely disassembling
the fluid section. It is possible that
the valves may not seat properly
because of debris stuck in the foot
valve seat or outlet valve seat. Use
the following instructions to clean the
valves and reverse or replace the
seats.
1. Remove the pusher stem clip
and slide the pusher stem
housing from the foot valve
housing.
2. Using a wrench, loosen and
remove the foot valve housing
from the pump block.
3. Clean out any debris in
the foot valve housing and
examine the valve housing
and seat. If the seat is
damaged, reverse or replace the seat.
4. Using a 5/16" hex wrench, loosen
and remove the outlet valve retainer
from the piston rod.
NOTE: always service the outlet
valve with the piston rod
attached to the pump. This
will prevent the piston
rod from rotating during
disassembly of the outlet
valve.
5. Clean out any debris and examine
the outlet valve housing and seat. If the seat is damaged,
reverse or replace the seat.
6. Remove, clean, and inspect the outlet cage, crush
washer, and outlet valve ball. Replace if they are worn or
damaged.
NOTE: The outlet cage always must be used with the
crush washer. They are included together in the
repacking kit as assembly P/N 704-642.
7. Reassemble the valves by reversing the steps above.
NOTE: During reassembly of the outlet valve, apply one
drop of Loctite (included in the repacking kit) to
the threads of the outlet valve retainer before
threading it into the piston rod. Then, torque the
retainer to 144 in./lbs. (12 ft./lbs.).
© Titan Tool Inc. All rights reserved.

Repacking the Fluid Section

Pump
block 1. Remove the foot valve assembly using the steps in the
"Servicing the Valves" procedure above.
Bushing
Foot valve
NOTE: The outlet valve does not need to be
seal
disassembled from the piston rod for this
Inlet cage
procedure.
Foot valve
ball
2. Using 3/8" a hex
Foot valve
wrench, loosen and
seat
remove the two pump
block mounting screws.
Teflon
O-ring
3. Pull the pump block
down approximately 1/2"
Foot valve
from the pump housing.
4. Slide the pump block
O-ring
and piston rod forward
until the piston rod is out
Pusher
of the T-slot on the slider
stem
assembly.
housing
5. Slide the piston rod out
through the bottom of
the pump block.
6. Loosen and remove the
Piston rod
retainer nut and piston
Outlet cage
guide from the pump
Crush
block.
washer
7. Remove the upper and
Outlet valve
lower packings from the
ball
pump block.
Outlet valve 8. Clean the pump
seat
block and install the
new upper and lower
Outlet valve
packings. Refer to the illustration below for proper
retainer
packing orientation.
Install upper packing
with raised lip and O-ring
Raised Lip
9. Inspect the piston rod for wear and replace if necessary.
10. Reassemble the outlet valve assembly into the piston
rod. Tighten the outlet valve retainer with a wrench until
secure.
NOTE: use the T-slot on the slider assembly to hold the
piston rod in position while securing the outlet
valve retainer.
IMPORTaNT: Never use a wrench on the piston itself. This
could cause damage to the piston and cause leakage.
11. Insert the piston guide into the retainer nut. Thread the
retainer nut into the pump block until it is hand tight.
12. Slide the piston guide tool (included in the repacking kit)
over the top of the piston rod and insert the piston rod
through the bottom of the pump block. Using a rubber
mallet, tap the bottom of the piston rod lightly until the
piston rod is in position in the pump block.
NOTE: coat the piston guide tool and the piston rod
with grease before inserting them into the pump
block.
13. Using a wrench, tighten the retainer nut securely.
14. Slide the top of the piston rod into the T-slot on the slider
assembly.
15. Position the pump block underneath the pump housing
and push up until it rests against the pump housing.
11
T-Slot
Install lower packing
with the beveled
facing down. edge facing up.
O-Ring
English
Slider
assembly
Retainer
nut
Piston
guide
Upper
packing
Pump
block
Pump block
mounting
screw
Lower
packing
Piston rod
Beveled Edge